... 2, fast response for quotation and prototyping and shorter lead time for delivery3, professional engineering team on site production ... / Silver/Tin, OSP3.Fast turnaround Prototypes & mass production.4.Lead time of 7-21 days, according to quantities and PCB ... Origin: ShenZhen China (Mainland)Brand Name: RIDECONSurface Finishing: HAL, Lead Free HAL, Immersion gold, OSP, Immersion tin, Immersion silver, ...